Cam-operated pump.



s. W. LUITWIELER.'

0AM OPERATED PUMP.

'APPLIOATION FILED MAR. 21, 1905.

Patented June 29, 1909.

3 SHEETS-SHEBT 1.

s'. W. LUIT'WIELER.

0AM OPERATED PUMP.

APPLICATION FILED MAR. 21, 1905.

926,267. Patented June 29, 1909.

8 SHEETS-SHEET 2.

S. W. LUITWIELER.

CAM OPERATED PUMP.

APPLICATION FILED MAR. 21, 1905.

Patented June 29,1909.

a SHEETS-SHEET a;

1 VE/VTO ATTORNEY WITNESSES -UNITE STATES PATENT OFFliCifi.

CAM-OPERATED PUMP.

Specification of Letters Patent.

Application filed March 21, 1905.

Patented June 29, 1905.

Serial No, 251,494.

' To all whom. it may concern:

Be it -known that I, SAMUEL \V. LorrwiELnR, of the city of Lesi-kngeles, in the county of Los Angeles, in the State of Cali -for'nia,pump manufaeturer. have invented certain new and useful improvements inCanrOperated Pumps for liaising and Distributing \Vater, of which thefollowing is a full, clear, and exact description or specifiea tion,reference being had to the annexed drawings and to the letters markedthereon.

My said invention which relates to certain improvements in pumps forraising and de- 1898, and assigned in respect of the whole of his rightsor intere-f in the said invention -and Letters fatent by the said .\l.11. Wilkinson'to and in favor of myself exclusively, and issued tomyself, the said fitment \V. lnJirn'inri-zu, as Letters Patent Nov(329,039, dated July '18, l flf 1 My present invention has for part ofits object to provide vertical stationary guideways at the rear of theeam-frames in which guide-ways the slide-blocks forming part of the rearof each cani-frame lit, so that each cannl'rame may he reciproeatcdsmoothly and with requisite vertical guide. support therein. Thecam-frames as 1 now construct thennprovided as aforesaid withslide-blocks at the rear of each and near to the edges thereof, lit intothe two inner or adjacent vertical guide-ways which are situated in thefront face of a vertical column or pillar at the rear of the framing,otherwise known as housing. wherein the entire pumps and theirconnectionsare carried; and the outer slideblocks of the cam-frames,both at the rear as well as at the frontof the camframes fit into andoperate in parallel vertical guides, at the rear and front of the endframes or housings of the pump respectively. In this improvedarrangement of both the guide-Ways and slide-blocks of the camfranies,not only are the ea1n-frames during operation 11111011 DIUI'G'UHQUtlVOlysup orted than hitherto, by the slides being at fiirther distances apartand in greater numbers with larger sliding faces, but they are alsosupported completely, both at the front, the rear, and laterally duringevery position of the cam-frames, thereby insuring steadiness ofsliding-movement during the pumpsoporation.

My said invention has for the other part of its object to enable two ormore camdriven pumps of the class hereinbefore re ferred to, to bedriven directly by means of a crank and connecting rod, from a steam,gas, or other reciprocating engine, operating a crank shaft, and withconstant load and speed.

vln the operation of all other reciprocating (pump mechanisms of which 1am at present aware, the water is discharged from the pumps in pulsatingor irregular liow. 0wmg to the continuity or regular discharge of waterfrom the class of cam driven pumps to which this invention relates, 1 amenabled to drive the pumps with toothed gearing placed in part upon acrank shaft having the crank on that part of the shaft between thehousings.

Upon the annexed drawings, Figure l, is a front elevation of the drivingmeehau' ism for operating a double plunger pump constructed inaccordance with my present improvements. Fig. 2, is a part plan of thesame, and Fig. 3 is a central transverse sew tion thereof showing someparts in elevation and as driven by a crank instead of by a beltv pulleyas in Figs. 1 and 2. The frame or housing of the improved pump includesa base, 5, and uprights, 'l, 'l, rising one at each side of the base,said uprights being connected at their upper ends by a crossbar, V. Thevertical guide-ways are mounted upon the inner sides of the uprights'.l, '1, near the front edges of the latter, are provided with L-shapedflanges, (L, best seen in Fig. 2, and said guide-ways are. thoseagainst, and within which the front. bearing blocks ii, of the(aim-frames (l, operate, and the vertical guide-ways l), are thoseagainst and within which the. rear bearing faces l if, of the saidcam-frame (1, also operate, by being alternately reeiprocatedU,"-\\"tlltl and downward therein, eoincidcntly with the rotations ofthe cams l l, alid 1*), respectively. Both of the cams i and 111, arecarried on one and the same cam shaft 15, and have their drivingsurfaces G, G, continuous. These driving surfaces G, G, opera seconddriving surface K, provided on that part only of each cam E, and E,which is about opposite to the maximum radius, of the lifting surfacesG, G, as shown by the drawings, and this portion K, of each cam,

acting upon the lower antifriction rollers L,

at each downward stroke of the cam-frames E, and E, produces thedownward stroke of each pump rod I and I, (because of the contour of theportions 15,) in less time than the upward strokes of the pump are madeby. the lifting surfaces G, G, of these cams.

Since the cams E, and E, are by reason of the construction which hasbeen herein described of equal dimension and contour oftheirrespectively opposite driving surfaces and structure-it followsthat by keying these cams on to the cam shaft E, in such positions thattheir maximum and minimum diameters are opposite each other, that thecams are balanced in whatever position of rotation they may be situated,and that as the cam-frames C, C, and the parts or rried thereby are ofequal weight, the parts are always in equilibrium during their rotation,which is effected by the shaft M, and spur pinion N, acting upon thespur wheel t),

' upon the cam shaft E.

While in Figs. 1 and 2, l have shown my improved pump as being driven bya belt pulley I, it is to be understood that I prefer to dispense withthe said belt pulley, and to substitute therefor, the crank (,1, shownat Fig. 3, to which crank I couple the connecting rod of a steam or gasengine, and drive the pumps directly either by such engines or othermotor operating directly upon a crank.

it is further to be understood that the vertical slides D, against andWithin which the central sliding blocks F, at the rear of [he cam-framesC, C, operate, are formed on the front part of the column B, as shown inthe drawings; the column B, being firmly bolted to the base-plate S, ofthe framing or housing at the rear of said'base plate, inter mediate tbeuprights T, and to an upper cross bar V, of the housing which connectsthe uprights T, T as shown in the drawings at Figsrl and 2 but brokenoutin Fig. 2. in

the caseof pumps of comparatively small dimensions the outer rear shdesD, shown in 1 2 may be dispensed with, in which case the cam-frames G,are guided by and within cease? the front slides A, and the central rearslides l). in'the column B.

in cases .vhercin it is desired to employ a vessel of compressed air, asis sometimes resorted to in connection with pumps, the

hollow ofthe column it um be utilized for that purpose by connecting itthrough a passa'ge' U, with the pump as shown at Fig. 3, in which casethe colunin R, may be employed for an additional useful purpose besidesthat of constituting thecentral guideways for the rear slideblocks ofthe camframes 0.

Having now described the nature of my said invention and the bestsystem, mode, or manner I am at present acquainted with for carrying thesame into practical effect, I desire to observe in conclusion that what1 consider to be novel and original and therefore claim as the inventionto be secured to me by Letters Patent is as follows:

1. In a pump of' the class. described, a frame or housing comprising "abase, uprights rising at the sides of the base, a crossbar connectingtheupper ends of said uprights, and a'pillar or column mounted upon andrising from the rear part of the base in rear of and intermediate theuprights and connected at the front edge of its upper end with thecross-bar connecting said uprights, vertical guide-ways upon theuprights and upon the intermediate column, and rec'iprocatorycam-frames, each having slides engaging guide-ways upon the uprights andupon the intermediate column.

in a cam-driven pump of theclass described, 21 frame or housingcomprising a base, uprights rising at the sides of the base,

a crossbar connecting the up per ends of said uprights, and a pillar orcolumn mounted upon and risingfrom the rear part of the base in rearof-and intermediate the uprights and connected at the front edge of itsupper end with the cross-bar connecting said uprights, verticalguide-ways upon the inner sides of the uprights near their front edgessaid guide-ways having L-shaped flanges, guide-ways upon the uprightsnear their rear edges, guide-ways upon the face of the intermediatecolumn, and reciprocatory camfrzunes, each having slides engagingguideways near the front and rear edges of the uprights and upon theface of the intermediate column, said column being closed at its upperend, and there being an air inlet port i'ormcd through the base, and apump cylinder located beneath said base, said port establishingcouiniuniczition between said cylinder and the interior of thecolumn,"said column being also in the rear of the cam frames. r

in a cam-driven pump ofthc class described, a frame or housing includinga base,

uprights rising. at the sides of the base, a column rising from the rearof the base in rear of and intermediate the uprights, and 21 W.LUITWIELER, have hereunto setrmy hand cross-bar connecting the upperends of the and seal before the two subscribing wituprights andconnected with the front edge nesses.

Q of the top of the intermediate column,.1n SAMUEL W. LUITWIELER. 5.]

-5 combination with reciprocatory cam-frames WVitnesses:

guided between the uprights and the column. J. D. Com

In testimony whereof I, the said SAMUEL HADASSAH bAY.

